| Main Ref. | De Vos, L. and D.F.E. Thys van den Audenaerde, 1990 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Females generally attain a larger size than males (Ref. 52193). |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Diagnosis: Last unbranched ray of dorsal fin thorny, long and with posterior denticulation; barbels not well developed, anterior barbel very short, just reaching the posterior side of the maxilla, posterior barbel just reaching the middle of the eye (Ref. 27628). Dorsal side brown-silver coloured, ventral side silver, with a darker band on the flanks; fins not coloured (Ref. 27628). Description: Head pointed, mouth small, with 2 pairs of short barbels (Ref. 52193). Dorsal fin with 3 spines and 7-8 soft rays; anal fin with 3 unbranched and 5-7 branched rays; Primary dorsal fin ray serrated on distal half, hind margin of erect dorsal fin vertical (Ref. 27628, 52193). Scales in lateral line 32-40, 16-18 around caudal peduncle (Ref. 27628, 52193). Colouration: Plain olive grey or silvery in turbid waters, a thin sideline sometimes present (Ref. 52193). Fins not coloured (Ref. 27628). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | 32 - 40 |
| Scale rows above lateral line | 7.5 - 7.5 |
| Scale rows below lateral line | 3.5 - 3.5 |
| Scales around caudal peduncle | 16 - 18 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 3 - 3 |
| Soft-rays total | 7 - 8 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 8 - 10 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays |